12 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Utica | Oneida County | 63,281 |
| Union | Broome County | 54,144 |
| Ulster | Ulster County | 12,624 |
| Ulysses | Tompkins County | 4,939 |
| Union Vale | Dutchess County | 4,600 |
| Unadilla | Otsego County | 4,073 |
| Urbana | Steuben County | 2,041 |
| Upper Nyack | Rockland County | 2,038 |
| Upper Brookville | Nassau County | 1,771 |
| Unadilla | Otsego County | 1,084 |
| Union Springs | Cayuga County | 1,071 |
| Unionville | Orange County | 628 |